How is an abiotic factor measured?
How is an abiotic factor measured? Abiotic factors can be measured using Light meters, moisture meters and thermometers.
What happens if dissolved oxygen is too high?
Gas Bubble Disease
Just as low dissolved oxygen can cause problems, so too can high concentrations. Supersaturated water can cause gas bubble disease in fish and invertebrates ¹². Significant death rates occur when dissolved oxygen remains above 115%-120% air saturation for a period of time.
What is the BOD of drinking water?
Drinking water has a BOD level of 1 – 2 ppm. When the BOD value of water is in the range 3 – 5 ppm, the water is moderately clean. Polluted water has a BOD value in the range of 6 – 9 ppm. In polluted water, some organic waste is present.
Does cold water have more oxygen?
Dissolved oxygen, temperature, and aquatic life
Cold water can hold more dissolved oxygen than warm water. In winter and early spring, when the water temperature is low, the dissolved oxygen concentration is high. In summer and fall, when the water temperature is high, the dissolved-oxygen concentration is often lower.